Teach local register allocator to deal with landing pad MBB's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51647 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp
index 18e7656..59831f0 100644
--- a/lib/CodeGen/RegAllocLocal.cpp
+++ b/lib/CodeGen/RegAllocLocal.cpp
@@ -549,10 +549,10 @@
// If this is the first basic block in the machine function, add live-in
// registers as active.
- if (&MBB == &*MF->begin()) {
- for (MachineRegisterInfo::livein_iterator I=MF->getRegInfo().livein_begin(),
- E = MF->getRegInfo().livein_end(); I != E; ++I) {
- unsigned Reg = I->first;
+ if (&MBB == &*MF->begin() || MBB.isLandingPad()) {
+ for (MachineBasicBlock::livein_iterator I = MBB.livein_begin(),
+ E = MBB.livein_end(); I != E; ++I) {
+ unsigned Reg = *I;
MF->getRegInfo().setPhysRegUsed(Reg);
PhysRegsUsed[Reg] = 0; // It is free and reserved now
AddToPhysRegsUseOrder(Reg);